Hydroxylated Analogs of Mexiletine as Tools for Structural-Requirements Investigation of the Sodium Channel Blocking Activity
作者:Alessia Catalano、Alessia Carocci、Maria M. Cavalluzzi、Antonia Di Mola、Giovanni Lentini、Angelo Lovece、Antonella Dipalma、Teresa Costanza、Jean-François Desaphy、Diana Conte Camerino、Carlo Franchini
DOI:10.1002/ardp.200900218
日期:——
4‐(2‐aminopropoxy)‐3‐(hydroxymethyl)‐5‐methylphenol 2, two dihydroxylated analogs of mexiletine – a well known class IB anti‐arrhythmic drug – were synthesized and used as pharmacological tools to investigate the blocking‐activity requirements of human skeletal muscle, voltage‐gated sodium channel. The very low blocking activity shown by newly synthesized compounds corroborates the hypothesis that the
[2-(2-氨基丙氧基)-1,3-亚苯基]二甲醇 1 和 4-(2-氨基丙氧基)-3-(羟甲基)-5-甲基苯酚 2,美西律的两种二羟基化类似物——一种众所周知的 IB 类抗心律失常药物——被合成并用作药理学工具来研究人类骨骼肌电压门控钠通道的阻断活性需求。新合成的化合物显示出的非常低的阻断活性证实了这样的假设,即局部麻醉剂类药物的芳族部分的对位酚基和/或芳族部分上的苄羟基的存在会损害转运至或与 Na+ 通道孔中结合位点的相互作用。